Improvement in dovetailing-machine



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JOHN PHILLIPS, JR., OFCHICAGQILLINOI'S'.

Letters Patent 93,225, dated August-3, 1869.

IMPRovEMnNT 1N DovnTAILING-Mncnmn.

The Schedule referred to in these Letters Patent and making part of the same To all whom it may concern Be it known that I, JOHN PHILLIPS, Jr., of the city of Chicago, and county of Cook, and State of Illinois, have invented a newand useful Improvement in Dovetailing-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enablethose skilled in the art to make and use the samereference being had to the accompanying drawing, forming part of this specification, inwhich- Figure l is a perspective view.

Figure 2, a top view of the stationary frame-work.

Figure 3, aback-end View.

Figure 4, one of the cutting-heads, with the cuttingknives attached, showing the cutting-knives edgewise.

Figure 5, yiew of same cutting-head, showing the straight knife atwise.

Figure 6, end view of saine cutting-head.

Figure 7 the 'other cuttlng-head, with its cuttingknife attached. l

Figure 8end view ofl same cutting-head.

Figure 9, section of dovetailed work for rear end of drawers.

Figure 10, section of dovetail-work for front of drawers.

Similar' letters of reference in each of the figures indicate corresponding parts.

My invention consists in certain arrangements ot parts, by which dovet-ailing can be done in an expeditious and neat manner.

A is the frame.

B, bed-plate'.

C, mandrel-stand. y

I), mandrel, with driving-pulleys on its centre, and a cutting-head on each end. l

E, cutting head to cnt the wide dovetail-slots.

F, flat, straight knife, its outer' end bevelled.

G, cutting-knife, with its cutting-end turned inward toward the knife F, forming a bevelled lip.

K, a sliding keeper, on which to put a piece to eut the wide dovetail. v

M, an adjustable stop, to regulate the depth of the doyetail.

N, way on which the keeper K slides crosswise.

P, stops, pivot-ed on-the bottom of keeper K, their outer ends connected by a chain.

Q, lever tothrow stops P out and in the notches in l the gauge O.

It, stop to regulate the movement of the sliding works K andN, so as to have the piece to be dovetaled come' up to the cutting-head to the desired.

pointto out the dovetail the requireddepth.

S, sliding ways on the bed-piece B, on which slide N is moved.

Operation.

' the cutter-head as near as required; then slide keeper K so as to bring the cutting-head as near the side of the -piece lto be slotted as required; then, by the lever Q, set one of the stops P against the gauge O, in one of its notches; Athen shove the piece up to the cuttinghead, which will enter the piece, cutting the required depth; then t-hrow stop P out of the notch'in the gauge, and slide keeper K over therequired distance, which will be regulated by the notches in the gauge, the cutting-head will cut the slot as desired; then draw back the keeper K, and shove it on the slide-way the required distanceto leave the proper amount of wood between the slots; and then cut another slot as before, the cutting-head being operated by a belt 'over pulley D.

What I claim as my invention, and desire to secure by LettersPatent, is

The arrangement of the cutting-head E, with its knives F and G, sliding keeper K, sliding 'way N, gauge- O, stop P, stop M, and setlscrew' L, and sliding way S, and stop R, when constructed to operate substantially as described.

JOHN PHILLIPS, JR.

Witnesses: 1 HERMAN EBERHARDT, JAMES W. KERR. 

